2) Bobby makes model train sets. Each set requires 1,998 pieces of track. At the Hobby store, there are 37 pieces in each box. a. How many boxes does Bobby have to buy to make a model train set? Show all your work.

You never gave the speed of the blue train. The path to collision is equal to 1½ circles. 1.5 x 210 meters = 315 meters I'm going to arbitrarily guess the speed of the blue train is 15 meters per minute. They are therefore approaching each other at a combined rate of 35 meters per minute. 315 / 35 = 9 minutes 9 minutes

Step-by-step explanation:

answer: a.   one is a factor of every whole number since every number is divisible by itself.